States ›Indiana ›St. Joseph County ›Mishawaka

Mishawaka, IN Tap Water Quality 2026

Water quality report for Mishawaka, IN — PFAS, lead and copper results, violation history and state inspection findings from EPA SDWIS.

A look at Mishawaka's drinking water using EPA enforcement records: violations, lead and copper results, PFAS sampling and state inspection findings.

Main Utility: Mishawaka Utilities PWSID: IN5271009 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 8.90 ppb, 59% of the action level and no violations are open. PFAS was detected below the federal limit.

A

Mishawaka earns an A for water quality

Graded on violations, lead, and PFAS, with state inspection findings.

Lead: 8.90 ppb — 59% of the federal action level
PFAS detected below the federal limit
No violations since 2015
No violations currently open
Mishawaka's lead level vs. all Indiana community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 8.90 ppb — 59% of the federal action level
✓ Lower lead than 4% of Indiana utilities
Population Served
49739
~17457 connections
Water Source
Groundwater
Drawn from wells — SDWIS source code GW
Active Violations
0
None on record since 2015

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
59% of EPA action level
8.90 ppb
Action level: 15 ppb
The 90th-percentile lead result is 8.90 ppb, 59% of the 15 ppb federal action level. The action level is a treatment trigger, not a legal maximum, and it is measured across sampled taps rather than at any single home.

Contaminant Violations (2015–Present)

✓ No violations on record for this water system.
Understanding violation types MCL violations mean a contaminant exceeded the federal maximum limit — the most serious type.
TT (Treatment Technique) violations mean required treatment procedures weren't followed, but don't necessarily mean contamination occurred.

Violation History

No violations are on record for this system since 2015. EPA records violations for every community water system, so this reflects a clean compliance history rather than missing data.

About the Main Water System

Utility Mishawaka Utilities
PWSID IN5271009
Water source Groundwater — Drawn from wells — SDWIS source code GW
Population served 49,739
Service connections 17,457
Systems serving this area 2
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Mishawaka tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 8.90 ppb, 59% of the action level.
Does Mishawaka water have PFAS? ▼
PFAS was detected but stayed below the federal limit.
Who supplies water to Mishawaka? ▼
Mishawaka Utilities (PWSID IN5271009), one of 2 systems serving this area. Groundwater. Drawn from wells — SDWIS source code GW
When was this system last inspected? ▼
It was last inspected on 2025-02-19. No significant deficiencies were recorded.

What Should Mishawaka Residents Do?

1
Consider a filter certified for lead
Look for NSF/ANSI 53 certification for lead reduction.
2
Check for a lead service line
Lead reaches tap water mainly through service lines and household plumbing. Suppliers now publish an inventory identifying lead lines.
3
Flush before drinking
If water has sat in pipes more than six hours, run the cold tap for two minutes before drinking or cooking.

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